Fix review request number and add more tests (#27104)

fix #27019 
## testfixture yml
1. add issue20(a pr issue) in repo 23, org 17
2. add user15 to team 9
3. add four reviews about issue20
## test case
add two tests that are described with code comments
the code before pr #26784 failed the first test
<img width="479" alt="image"
src="https://github.com/go-gitea/gitea/assets/70063547/1d9b5787-11b4-4c4d-931f-6a9869547f35">
current code failed the second test(as mentioned in #27019)
<img width="484" alt="image"
src="https://github.com/go-gitea/gitea/assets/70063547/05608055-7587-43d1-bae1-92c688270819">
Any advice is appreciated.

---------

Co-authored-by: CaiCandong <50507092+CaiCandong@users.noreply.github.com>
Co-authored-by: Giteabot <teabot@gitea.io>

models/fixtures/issue.yml

@@ -321,3 +321,20 @@
   created_unix: 946684830
   updated_unix: 978307200
   is_locked: false
+
+-
+  id: 20
+  repo_id: 23
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue for pr
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 978307210
+  updated_unix: 978307210
+  is_locked: false

models/fixtures/pull_request.yml

@@ -89,3 +89,12 @@
   base_branch: main
   merge_base: cbff181af4c9c7fee3cf6c106699e07d9a3f54e6
   has_merged: false
+
+-
+  id: 8
+  type: 0 # gitea pull request
+  status: 2 # mergable
+  issue_id: 20
+  index: 1
+  head_repo_id: 23
+  base_repo_id: 23

models/fixtures/repository.yml

@@ -679,7 +679,7 @@
   num_forks: 0
   num_issues: 0
   num_closed_issues: 0
-  num_pulls: 0
+  num_pulls: 1
   num_closed_pulls: 0
   num_milestones: 0
   num_closed_milestones: 0

models/fixtures/review.yml

@@ -132,3 +132,41 @@
   content: "singular review from org6 and final review for this pr"
   updated_unix: 946684831
   created_unix: 946684831
+
+- 
+  id: 16
+  type: 4
+  reviewer_id: 20
+  issue_id: 20
+  content: "review request for user20"
+  updated_unix: 946684832
+  created_unix: 946684832
+
+- 
+  id: 17
+  type: 1
+  reviewer_id: 20
+  issue_id: 20
+  content: "review approved by user20"
+  updated_unix: 946684833
+  created_unix: 946684833
+- 
+  id: 18
+  type: 4
+  reviewer_id: 0
+  reviewer_team_id: 5 
+  issue_id: 20
+  content: "review request for team5"
+  updated_unix: 946684834
+  created_unix: 946684834
+
+-
+  id: 19
+  type: 4
+  reviewer_id: 15
+  reviewer_team_id: 0
+  issue_id: 20
+  content: "review request for user15"
+  updated_unix: 946684835
+  created_unix: 946684835
+

models/fixtures/team.yml

@@ -93,7 +93,7 @@
   name: review_team
   authorize: 1 # read
   num_repos: 1
-  num_members: 2
+  num_members: 3
   includes_all_repositories: false
   can_create_org_repo: false
 

models/fixtures/team_user.yml

@@ -123,3 +123,9 @@
   org_id: 36
   team_id: 20
   uid: 5
+
+- 
+  id: 22
+  org_id: 17
+  team_id: 9
+  uid: 15